Pool of water found under both sides wells of the trunk in a CL65



My radio started acting up.. not being available and I kept resetting it to no.avail. when I lifted the trunk to check it out....
To my shock.. I have found of water found the radio amplifier modules submerged halfway in..water!!
i checked the right side under battery well of the and found the power trunk "pump" drowning in water...
After 30 seconds of disbelief I pushed through the drain plugs which were clogged... removing the gunk resulted in dripping... Soni figure i will remove the plugs to drain as clogs will most likely return.
Now the million dollar question... how come so much water is allowed to accumulate there? Should it not drain better? There was very little dust gunk to begin with.....
At east I also know why my power trunk stopped functioning..months ago. By the way anyone knows the replacement part number?

After draining... the radio is functioning again .(to my astonishment). I lost Voice control for now...
How do I prevent this from happening again...i got suspicious and removed the taillights..and lo and behold the base was also wet... There was very little water in the wheel well.
Please share your fixes or ideas..
Underneath battery. 2005 CL65
Amp modules removed. 2-3 inches of water
Last edited by abdoulwane; Apr 18, 2021 at 03:37 AM.



My radio started acting up.. not being available and I kept resetting it to no.avail. when I lifted the trunk to check it out....
To my shock.. I have found of water found the radio amplifier modules submerged halfway in..water!!
i checked the right side under battery well of the and found the power trunk "pump" drowning in water...
After 30 seconds of disbelief I pushed through the drain plugs which were clogged... removing the gunk resulted in dripping... Soni figure i will remove the plugs to drain as clogs will most likely return.
Now the million dollar question... how come so much water is allowed to accumulate there? Should it not drain better? There was very little dust gunk to begin with.....
At east I also know why my power trunk stopped functioning..months ago. By the way anyone knows the replacement part number?

After draining... the radio is functioning again .(to my astonishment). I lost Voice control for now...
How do I prevent this from happening again...i got suspicious and removed the taillights..and lo and behold the base was also wet... There was very little water in the wheel well.
Please share your fixes or ideas..
Underneath battery. 2005 CL65
Amp modules removed. 2-3 inches of water
I have already ordered new taillight seals....



You can reverse/delay some of this with silicone grease, which I use on the rubber seals on all my vehicles. Owning older vehicles requires additional attention and care, but you may still run into issues such as these.


